Traction-wheel for harvesters



(No Mndel.)

G. M. KILMON.

TRATION WHEEL FOR HARVESTERS.

No. 584,369. Patented June 15,1897.

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Parent GEORGE M. KILMON, OF ROYAL OAK, MARYLAND, ASSIGNOR OE ONE-HALF TOGEORGE L. CALDYELL, OF BALTIMORE, MARYLAND.

TRACTlON-WHEEL FOR HARVESTERS.

SPECIFICATION forming part of Letters Patent No. 584,369, dated J une15, 189'?.

Application led October 3, 1896.

To r/ZZ whom, t may concern:

Beit known that I, GEORGE M. KILMON, residing at Royal Oak, in thecounty of Talbot and State of Maryland, have invented a new and ImprovedTraction-lVheel for Harvcsters, the., of which the following is aspeciiication.

This invention relates generally to tractionwheels, and more especiallyto an improved 1o construction of tractionwheels adapted for use uponharvester and similarinachines.

The object of this invention is to provide a traction-wheel which willbe exceedingly strong and durable, one that will be light andserviceable, and one that will yield t-o rocks and hard irregularitiesoi' surface, thereby preventing the machine from being severely jarredor the rim of the wheel'from being broken.

IV ith these various objects in view my invention consists, essentially,of a tractionwheel having an elastic or yielding tread or tire. I

My invention consists also in a traction- 2 5 wheel having an innernon-yielding rim and an outer elastic or yielding rim; and my inventionconsists, further, in making such yielding rim or tread in sections,each section being independent of the others.

Myinvention consists also in certain details of construction andnovelties of combination, all of which will be fully describedhereinafter, and pointed out in the claims.

In the drawings forming a part of this speciiication, Figure l is a viewshowing an improved construction of a harvester or mower provided withmy improved construction of traction-wheel. Fig. 2 is a side elevationof said wheel. Fig. 3 is a partial top plan view 4o of the tread. Fig. tis a detail perspective view showing the manner of uniting thetreadsection to the inner rim. Fig. 5 shows the detail of constructiondetached.

In carrying out my invention I construct the wheel with a hub A the sameas usual, from which radiate spokes B, sai-d spokes being preferablybifurcated at their outer ends, as shown at O, where they unite with theinner rim D; but this construction is not 5o at all necessary, as thisbifurcated feature may be dispensed with if desired. The inclearly shownin Figs. 4. and 5.

Serial No. 607,746. (No model.)

ner rim D is preferably made of a single piece and is thoroughly rigidthroughout, and at regular intervals said rim is provided with radialprojections E upon the outer face thereof, said projections beingessentially wedge-shaped and carrying traction-teeth E. A series ofperforations F are produced in the rim D between the projections E, saidperforations being arranged in pairs, as 6o The opposite faces of theprojections E have recesses or notches G cut therein, and the ends ofsaid projections are tapered, as shown at II. (See Figs. 3 and 5.)Between each pair of 65 projections E is arranged a section I of theVouter rim, or tread, said section having an extension K at each end,which fits in the recess G, and the ends are tapered, as shown at L, inorder to engage the tapered portion 7o H of the projection E. Thisconstruction of the tread-section enables it to fit snugly hetween thepeculiarly-constructed projections of the inner end.

Each section I has a series of pins M pro- 7 5 jecting from the inner'face, there being four such pins arranged in pairs, which pins areadapted to pass through the openings F, when the tread-section is.arranged between the projections E, and at the end of each pin is 8oproduced a transverse opening M', through which is passed thelocking-pin M2, whereby the guide-pins M are securely locked againstdislocation from the inner rim D, as most clearly shown in Fig. 4..Surrounding each guide-pin between the tread section or plate I and therim D is a coiled spring N, the normal tendency of which is to maintainthe tread section or plate I flush with the top of the projections E,thereby providing a uni- 9o form circular rim or tread, and it Will benoticed that the tread section or plate is pro` vided withtraction-teeth O, thereby providing a thoroughly-efficienttraction-wheel.

Now it will be understood that in operation the springs N aresufficiently strong to maintain the position of the tread-sections whiletraveling over ordinary ground; but should a rock or stump be met withthe said springs will be compressed, permitting the loo tread-section toyield and thereby avoiding a severe jar to the machine and also prevent-`ing the periphery of the wheel from being broken.

I-Iaving thus described iny invention, what I claim as new, and desireto secure by Letters Patent, is-

l. In a traction-wheel, the combination of the inner rim provided With anumber of projections having a tread-surface, and a nurnber oftread-sections yieldingly held between said projections and having theirtread-face in the saine plane of contour as the treadsurface of theprojections, substantially as shown and described.

2. In a traction-Wheel, the combination of the inner riin provided withprojections having a tread-surface, said projections being grooved ontheir faces and having the ends thereof tapered, and a number oftread-sections yieldingly held between said projections and formed withextensions which lit in the grooves of the projections and having thetapered faces engaging the tapered faces of the projections,substantially as shown and described.

3. In a traction-wheel, the combination of the inner rigid riin providedwith projections having a tread-surface, a series of sections having atread-surface tting between said sections, and means for yieldinglyholding the said sections in position consisting of springssurrounding projecting pins on the tread-sections, located between therigid riin and said sections, and said pins passing through openingsformed in the rigid riin and prevented GEORGE M. KILMON.

lVitnesses:

T. C. SEYMOUR, Guo. SMITH.

